Fountain-pen.



F. W. MILLER. FOUNTAIN PEN. APPLICATION FILED AUG-3|. 1911.

1,258,593. Patented Mar. 5,1918.

a A9 27 2/ M 5 0 /7 ga l qg @QW I f M UNITED STATES PATENT OFFICE.

FRANK WILL MILLER, 0F BETHEL, MISSOURI.

FOUNTAIN-PEN.

Application filed Ang'u st 31, 1917.

[0 all 1071 0112. i?- may concern.

Be it known that I, FRANK WILL MiLLnu, a citizen of the United States,residing at .3ethel, in the county of Shelby and State of Missouri, haveinvented new and useful Improvenumts in Fountain-Pens, of which thefollowing is a specification.

This invention relates to fountain pens, and eomprehends the provisionof a construction wherein the component parts of the pen may beassociated in a manner to prevent leakage, especially when the pen isnot in use, while a slightndjustnient of the pen section permits of aconstant and uniform How of ink while the pen. is in use.

The invention will. be better understood when the following detaildescription is read in connection with the accompanying drawing, theinvention residing in the construction, combination and arrangement ofparts as claimed.

In the drawing forming part of this specification like numerals ofreference indicate similar parts in the several views and wherein Figure1 is a longitudinal sectional view through the pen showing the normalposition of parts.

Fig. 2 is a similar view showing the position of parts when the pen isin use.

Fig. 3 is a sectional view taken on line 33 of Fig. 1.

Fig. 4; is a perspective view of the feeder.

Referring more particularly to the drawing in detail 10 indicates thebody of the pen which is hollow to constitute a reservoir. The body 10is preferably of cylindrical formation in cross section, and isinteriorly threaded adjacent its open end as at 11 to accommodate thereduced threaded extension 12 of the pen section 13. The section 13 isprovided with a longitudinal bore 1+. in which is fitted a portion ofthe pen 15, and the feeder clearly illustrated in Fig. -.l.

The feeder is preferably constructed of hard rubber, and of cylindricalformation for the major portion of its length, but includes a finger 16which is disposed in juxtaposition to the pen 15 in the usual manner.The feeder is provided upon its upper side with a longitudinallyextending groove 17 which extends from one end of the feeder to a pointadjacent the extremity of the finger 16, this groove being arranged nextto the pen 15 for conveying the ink from the reservoir 10 to the pen 15for use. A portion of Specification of Letters Patent.

Patented Mar. 5, 1918.

Serial No. 189,146.

the groove 17 obliquely disposed as at 18 opening into a conical shapedvalve seat 19 at one end of the body, provided to accommodate a valve 20carried by the stem 21. The valve obviously controls the flow of inkfrom the reservoir 10 to the groove 17 and this valve is normallymaintained .eated in the manner to be presently described. The valvestem 21 has a portion projecting in advance of the valve and receivedwithin a bore 22 in the feeder, whereby the pen section is guided in itsadjustments toward and away from the valve. The stem 21 also projectsrearwardly of the valve and positioned within the reservoir 10.

Secured in any suitable manner to the reduced extremity of thepen'section is a strip of metal or other suitable material which bridgesthe valve seat in the said section and is provided with a cent *alaperture through which the valve stem passes. Fixed within the body orreservoir 10 is a transversely disposed member 25, formed to provide arelatively large central portion 26 adapted to be permanently engaged bythe adjacent end of the stem 21 of the valve,

with a view of maintaining the latter stationary in its given position.The stem 21 carries a flange or collar 27, with which a resilient meansinterposed therebetween and the strip of material 23, cooperates for thepurpose of maintaining the stem 21 in constant engagement with theenlarged portion of the member 2:"). As shown in this specific instance,use is made of a bowed leaf spring 24 which has a central openingthrough which the valve stem 21 operates, while the opposite extremitiesof the spring 24- bear against the strip 23. As above stated the strip23 is suitably secured to the adjacent end of the pen section, and withthe extremities of the spring bearing against said strip, and itsintermediate portion bearing against the collar or flange 27, the springis always under tension to maintain the stem 21 in contact with theenlarged portion of the member 25, with a result that the valve isimmovably positioned in the manner shown.

In practice, assuming that the parts are associated in the mannerillustrated in Fig. 1, and use of the pen is desired it is onlynecessary to rotate the pen section 13 in a direction to move the sameforwardly, or in other words in a direction away from the valve 20. Asthe pen section is moved in,

body portion constituting an ink this direction, carrying with it thestrip 23, the spring 2% assumes a bowed condition, thus maintaining,sufficient pressure upon the collar 27 to maintain the stem 21 incontact with the member 25 for the purpose mentioned. lvlanifestly, thevalve 20 remains stationary while the pen section 13 is moved away fromthe latter to permit the ink to flow from the valve 10 through thegroove 17 to the pen point. Subsequent to the use of the pen, the pensection is ro t-ated in an opposite direction to move the pen sectioninto eitective engagement with the stationary valve 20, in order toprevent further escape of the ink from the barrel 10. As the pen sectionis moved in this direction moving with it the strip 23, the spring 24;is flattened increasing the tension thereof upon the collar 27 to insureagainst relative movement of (flisplacement of the valve 20 under anycircumstance. ()bviously this contemplated operation not only insures aconstant and uniform How of ink, but the quantity of ink flowing. fromthe reservoir can be regulated by a proper adjustment of the pen section13.

While it is believed that from the foregoing description the nature andadvantages oi? the invention will be readily apparent, I desire to haveit understood that what is herein shown and described is merelyillustrative, and constitutes the preferred embodiment of the inventionto which I do not limit myself, and that such changes may be resorted towhen desired as fall within the scope of what is claimed.

hat is claimed is:

1. A fountain pen comprising a hollow body constituting an inkreservoir, a pen section. having a valve seat, a valve interposedbetween said reservoir and pen sec tion and including a stem projectingwithin the reservoir means disposed within the reservoir, and fixedrelatively thereto, said means constituting an abutment for the adfacent end ol the stem, means for holding the stem in engagement withthe aforementioned means whereby the valve is held immovable, andsaidpen section being capable of adjustment toward and away from thevalve to seat or unseat the latter.

A, fountain pen comprising a hollow reservoir, a pen section having avalve seat, a valve removably disposed within the reservoir in alinementwithsaid seat, said valve includ ing a stem, an element fixed within theres ervoir and separable from said stem, means operable to maintain thestem in constant engagement with'said fixed element to maintain thevalve immovoble, and said pen section being adj ustable toward and awayfrom said valve to seat and unseat the latter.

3. A fountain pen comprising a hollow body constituting an inkreservoir, a pen section having a valve seat, a member socured to saidpen section and bridging said seat, a valve disposed beneath said memberand including a stem passed centrally therethrough within saidreservoir, means including a resilient element for maintaining the valvestationary and said pen section being movable toward and away from saidvalve to seat and unseat the latter.

4-. A fountain pen comprising a hollow body portion constituting an inkreservoir, a pen section having a valve seat, a member secured to thepen section and bridgin said seat, a valve disposed beneath said memberand including a stem passed centrally through said member into thereservoir, an element fixed within said reservoir, resilient meanscooperating with said member and stem to hold the latter in engagementwith said element, whereby the valve is niain tained stz-itionary, andsaid pen section being adjustable toward and away from the valve to seatand unseat the latter. 7

A fountain pen comprising a hollow body portion constituting an inkreservoir, a pen section having a valve seat, a member secured to saidpen section and bridging the valve seat, a valve disposed beneath saidmember and including a stem projecting centrally therethrough, anelement fixed within the reservoir, a collar on said stem, resilientmeans interposed between said member and collar for maintaining the stemin contact with said element and the valve stationary, and said sectionbeing adjustable toward and away from the valve to seat and unseat thelatter.

6. A fountain pen comprising a hollow body portion constituting an inkreservoir, a pen section having a valve seat, an element fixed withinthe reservoir, a valve including a stem disposed within the reservoirand contacting said element, a bowed spring having an opening throughwhich the stem slides, means carried by the stem and cooperating withsaid spring whereby said stem is maintained in contact with said fixedelement and the valve stationary, said section. being adjustable towardand away from the valve to seat and unseat the lat ter, and said meanscarried by the stem serving to flatten the spring as the valve isseated. l

In testimony whereof I aflix my signature.

FRANK WILL MILLER.

Copies ofthis patent may be obtained for five cents each, by addressingthe Commissioner of Patents Washington, D. G."

